- ICH GCP
- US Clinical Trials Registry
- Clinical Trial NCT06291428
Raman Spectroscopy Compared to Flow Cytometry
Raman Spectroscopy Compared to Flow Cytometry as a Method for Assessing Measurable Residual Disease in Patients With Acute Lymphoblastic Leukemia
The detection of MRD is associated with an increased risk of relapse and adverse prognosis in all patient groups diagnosed with acute lymphoblastic leukemia (ALL). However, it has a sensitivity level that detects one leukemic cell in 10,000 normal cells, along with other disadvantages such as the need for a panel of fluorescent antibodies for MRD detection, and its measurement is not standardized in many centers. New determination techniques may be necessary for MRD evaluation. Raman spectroscopy is proposed as a potential technique for MRD measurement, which is based on the inelastic scattering of light that occurs when it interacts with matter, causing optical scattering, where a portion of the radiation changes its wavelength (by Raman effect).
Objectives:
MAIN OBJECTIVE:
To evaluate the presence of MRD in patients with ALL by comparing a standard evaluation method using flow cytometry with a new proposed method using Raman spectroscopy.
SPECIFIC OBJECTIVES:
- To assess the presence of MRD using flow cytometry in patients with ALL.
- To assess the presence of MRD using Raman spectroscopy in patients with ALL.
- To perform a comparison between the MRD measurement techniques by determining sensitivity, specificity, positive predictive value, and negative predictive value.
- To establish the validation of using Raman spectroscopy as a method for MRD evaluation.
Study Design:
An observational, cross-sectional, comparative, and diagnostic test study will be conducted on bone marrow aspirate samples from adult and pediatric ALL patients to evaluate the presence of MRD using Raman spectroscopy, comparing the results of this technique with those obtained using flow cytometry. As a diagnostic test study, sensitivity, specificity, positive predictive value, and negative predictive value will be evaluated. The study will be conducted on adult and pediatric patients diagnosed with acute lymphoblastic leukemia treated at the hemato-oncology department of the UMAE No. 1 National Medical Center Bajio and the UMAE Hospital Gynecology-Pediatrics No. 48.
Inclusion Criteria:
Patients diagnosed with ALL for whom MRD determination is clinically necessary will be included in the study. Their results will be evaluated using the gold standard, flow cytometry, and compared with results obtained through Raman spectroscopy.
Study Overview
Status
Conditions
Intervention / Treatment
Detailed Description
The assessment of measurable residual disease (MRD) is a frequent practice in the management of acute lymphoblastic leukemia (ALL). The detection of MRD is associated with an increased risk of relapse and adverse prognosis in all patient groups diagnosed with ALL. The three approved methods for MRD measurement are flow cytometry, polymerase chain reaction (PCR) of specific mutations, and next-generation sequencing (NGS). Of these, flow cytometry is the most used method in clinical practice. However, it has a sensitivity level that detects one leukemic cell in 10,000 normal cells, along with other disadvantages such as the need for a panel of fluorescent antibodies for MRD detection, and its measurement is not standardized in many centers. New determination techniques may be necessary for MRD evaluation. Raman spectroscopy is proposed as a potential technique for MRD measurement, which is based on the inelastic scattering of light that occurs when it interacts with matter, causing optical scattering, where a portion of the radiation changes its wavelength (by Raman effect). By analyzing the inelastically scattered light, we can obtain a Raman spectrum formed by the intensity of the scattered light as a function of its vibration frequency, thus obtaining information about the biochemical composition of a biological sample.
Objectives:
MAIN OBJECTIVE:
To evaluate the presence of MRD in patients with ALL by comparing a standard evaluation method using flow cytometry with a new proposed method using Raman spectroscopy.
SPECIFIC OBJECTIVES:
- To assess the presence of MRD using flow cytometry in patients with ALL.
- To assess the presence of MRD using Raman spectroscopy in patients with ALL.
- To perform a comparison between the MRD measurement techniques by determining sensitivity, specificity, positive predictive value, and negative predictive value.
- To establish the validation of using Raman spectroscopy as a method for MRD evaluation.
Study Design:
An observational, cross-sectional, comparative, and diagnostic test study will be conducted on bone marrow aspirate samples from adult and pediatric ALL patients to evaluate the presence of MRD using Raman spectroscopy, comparing the results of this technique with those obtained using flow cytometry. As a diagnostic test study, sensitivity, specificity, positive predictive value, and negative predictive value will be evaluated. The study will be conducted on adult and pediatric patients diagnosed with acute lymphoblastic leukemia treated at the hemato-oncology department of the UMAE No. 1 National Medical Center Bajio and the UMAE Hospital Gynecology-Pediatrics No. 48.
Inclusion Criteria:
Patients diagnosed with ALL for whom MRD determination is clinically necessary will be included in the study. Their results will be evaluated using the gold standard, flow cytometry, and compared with results obtained through Raman spectroscopy.
Study Type
Enrollment (Estimated)
Contacts and Locations
Study Contact
- Name: Lauro F Amador Medina, PhD
- Phone Number: 4772697907
- Email: lafab2013@gmail.com
Participation Criteria
Eligibility Criteria
Ages Eligible for Study
- Child
- Adult
- Older Adult
Accepts Healthy Volunteers
Sampling Method
Study Population
Description
Inclusion Criteria:
- Patients diagnosed with ALL for whom MRD determination is clinically necessary will be included in the study.
Exclusion Criteria:
- Patients without ALL
Study Plan
How is the study designed?
Design Details
Cohorts and Interventions
Group / Cohort |
Intervention / Treatment |
---|---|
Raman spectroscopy
Patients with acute lymphoblastic leukemia, in assessment for measure residual disease.
|
Raman spectroscopy is proposed as a potential technique for MRD measurement, which is based on the inelastic scattering of light that occurs when it interacts with matter, causing optical scattering, where a portion of the radiation changes its wavelength (by Raman effect).
By analyzing the inelastically scattered light, we can obtain a Raman spectrum formed by the intensity of the scattered light as a function of its vibration frequency, thus obtaining information about the biochemical composition of a biological sample.
|
flow citometry
Patients with acute lymphoblastic leukemia, in assessment for measure residual disease.
|
Raman spectroscopy is proposed as a potential technique for MRD measurement, which is based on the inelastic scattering of light that occurs when it interacts with matter, causing optical scattering, where a portion of the radiation changes its wavelength (by Raman effect).
By analyzing the inelastically scattered light, we can obtain a Raman spectrum formed by the intensity of the scattered light as a function of its vibration frequency, thus obtaining information about the biochemical composition of a biological sample.
|
What is the study measuring?
Primary Outcome Measures
Outcome Measure |
Measure Description |
Time Frame |
---|---|---|
measurable residual disease
Time Frame: up to 1 year
|
To evaluate the presence of MRD in patients with ALL by comparing a standard evaluation method using flow cytometry with a new proposed method using Raman spectroscopy.
|
up to 1 year
|
Collaborators and Investigators
Collaborators
Investigators
- Principal Investigator: Lauro F Amador Medina, PhD, Hospital Regional de Alta Especialidad del Bajio
Study record dates
Study Major Dates
Study Start (Estimated)
Primary Completion (Estimated)
Study Completion (Estimated)
Study Registration Dates
First Submitted
First Submitted That Met QC Criteria
First Posted (Actual)
Study Record Updates
Last Update Posted (Actual)
Last Update Submitted That Met QC Criteria
Last Verified
More Information
Terms related to this study
Additional Relevant MeSH Terms
Other Study ID Numbers
- F-CNIC-2024-007
Plan for Individual participant data (IPD)
Plan to Share Individual Participant Data (IPD)?
Drug and device information, study documents
Studies a U.S. FDA-regulated drug product
Studies a U.S. FDA-regulated device product
This information was retrieved directly from the website clinicaltrials.gov without any changes. If you have any requests to change, remove or update your study details, please contact register@clinicaltrials.gov. As soon as a change is implemented on clinicaltrials.gov, this will be updated automatically on our website as well.
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